Inkstand



(No Model.)

J. B. ARGHIB-ALD.

INKSTAND.

7 No. 440,254. Patented Nov. 11, 1890.

. W12 WESSES IJVVEJVZ'OZ? W QJ J. 31602-224240 WW 5 dilorney UNITEDSTATES PATENT rFIoE.

JABEZ B. ARCHIBALD, OF LINCOLN, NEBRASKA.

INKSTAND.

SPECIFICATION forming part of Letters Patent No. 440,254, dated November11, 1890.

Application filed March 10, 1890. Serial No. 34311 (NO modem To all whomit may concern:

Be it known that I, JABEZ B. ARCHIBALD, a citizen of the United States,residing at Lincoln, in the county of Lancaster and State of Nebraska,have invented new and useful Improvements in Inkstands; and I do herebydeclare the following to be a full, clear, and exact description of saidinvention, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to new and useful improvements in inkstands, andespecially to that class in which the ink is fed from a reservoir ordome to a dipping-cup.

The object of my invention is to provide an inkstand consisting of adome or reservoir for containing a quantity of ink, and having near itsbase a small dipping-cup into which the ink can be fed by the admissionof air in the top of the dome or reservoir as it is desired.

The invention consists in the construction of a dome provided with a cupnear its base, said cup communicating with the dome or reservoir bymeans of a small aperture, and the top of said dome provided with meansfor the admission of air to the reservoir, thus allowing the ink to befed from the dome or reservoir to the dipping-cup as desired.

The invention further consists in the novel construction of theremovable top, which is provided with an aperture and closed by thecontinued pressure of a spring acting on a diaphragm and opened by thecompression of the spring by exerting pressure on a plug connectingtherewith through the opening; and the invention also consists in thenovel construction and arrangement of parts, all as hereinafterexplained.

Referring to the drawings, Figure l is a view in perspective of myimproved inkstand. Fig. 2 is a sectional view taken on the line our ofFig. 1. Fig. 3 is a bottom view of the cap or cover having the valvedopening therein.

The dome A, forming the reservoir for holding and protecting the inkfrom evaporation, is made of any suitable material and of any useful orornamental construction.

Near the base of the dome A is provided the cup B, which communicateswith the interior of the dome through a small aperture 3, and throughwhich the ink is fed to the dipping-cup by the admission of air in thetop of the dome. Ordinarily the ink, which is held by the vacuum formedin the top of the dome by its own weight, feeds itself when the inkbecomes so low as to allow the admission of air through the liquid; butthe present device, in making the aperture small, does not rely on theadmission of air from the dippingcup to feed the ink thereto, which mustnecessarily become very low before it can be replenished of itself, butprovides a valve in the top of the dome A, by which the vacuum can bediminished by the admission of air, and thus allowing a regulatedquantity of ink to flow into the dipping-cup B, and bringing about thesame condition in the dome as existed before.

As shown inthe drawings, the dome A is made with a diamond-shapedconcavity D on its outer surface, into which is secured thefunnel-shaped cup B, and while this is a desirable form, yet any otherconstruction em bracing this principle of arrangement may serve as well.

The cap or cover E, with which the top of the dome A is provided, isscrew-threaded and adapted to be removed for filling the dome with ink,and when this operation is being performed the aperture 0 in thedipping-cup must be closed until the cover is replaced. The underportion of the screw cap or cover is provided with a circular recess F,having the air-inlet opening a, extending through the cap and openinginto the recess on the upper portion of the cap. 'lhrough the air-inleta extends a bar or rod 1), which loosely fits into the hole and hassecured to it near its center a diaphragm or disk 0, with preferably anupper face of rubber, said disk 0 being held against the under side ofthe cap around the air-inlet hole (L by the spring (1. This spring iscoiled around the red I) and finds its lower support on the spider f,which is secured over the recess and to the top. The upper portion ofthe rod-b, extending through the air-inlet hole, is provided with theplug which fits loosely into the recess in the upper portion of the cap,and by which the valve-disk c is displaced for the admission of air whenit is necessary to add more ink to that in the cup. The cap or cover Eis also provided with a square or other shaped projection on its top ICOby which a wrench can be applied for tight ening or removing the cover.

The pan or receptacle H, which I show 21 attached to my inkstand, may bedispensed with; but I prefer to combine this feature, as it offers atall times a protection to the desk from the ink in more ways than one.

What I claim is 1. An inkstand consisting of a dome or reservoir havingnear its base a dipping-cup, said dome or reservoir being normallyclosed at its top by a valve and adapted to hold the liquid by means ofthe vacuum formed therein and to feed the same to the dipping-cup by theadmission ofair through said valve, substantially as set forth.

JABEZ B. AROHIBALD. \Vitnesses:

W. C. STEWART, A. G. GREENLEE.

